| # | Country | Total Patents | |
|---|---|---|---|
| #1 | Austria | 3 | |
| #2 | Denmark | 3 | |
| #3 | Spain | 3 | |
| #4 | United States | 3 | |
| #5 | Canada | 1 |
| # | Industry | |
|---|---|---|
| #1 | Engines, pumps and turbines |
| # | Technology | |
|---|---|---|
| #1 | Pumps |
| # | Name | Total Patents |
|---|---|---|
| #1 | Richards Walter Joseph | 10 |
| Publication | Filing date | Title |
|---|---|---|
| US858468A | Controlling apparatus. | |
| US821673A | System of fluid-pressure control. | |
| US858467A | Automatic device for starting motors. | |
| CA84106A | Controller for electric motors |